make/common/JavaCompilation.gmk

#
# Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

# When you read this source. Remember that $(sort ...) has the side effect
# of removing duplicates. It is actually this side effect that is
# desired whenever sort is used below!

ifndef _JAVA_COMPILATION_GMK
_JAVA_COMPILATION_GMK := 1

ifeq (,$(_MAKEBASE_GMK))
  $(error You must include MakeBase.gmk prior to including JavaCompilation.gmk)
endif

# Java compilation needs SetupJarArchive and/or SetupZipArchive, if we're
# generating a jar file or a source zip.
include JarArchive.gmk
include ZipArchive.gmk

# Setup make rules for defining a Java compiler, which is needed to compile
# Java code. This rule generates no output.
#
# Parameter 1 is the name of the compiler definition. This name needs to be
# passed to SetupJavaCompilation. This name is used as variable prefix.
#
# Remaining parameters are named arguments. These include:
#   JVM:=The jvm used to run the javac command
#   JAVAC:=The javac jar and bootstrap classpath changes, or just bin/javac if JVM is left out
#   FLAGS:=Flags to be supplied to javac
#   SERVER_DIR:=Use a javac server (-XDserver) and store the server related files here
#   SERVER_JVM:=Use this JVM for the server. Defaults to the JVM above.
#   DISABLE_SJAVAC:=Set to true if this setup does not support sjavac
SetupJavaCompiler = $(NamedParamsMacroTemplate)
define SetupJavaCompilerBody
  # The port file contains the tcp/ip on which the server listens
  # and the cookie necessary to talk to the server.
  $1_SJAVAC_PORTFILE:=$$($1_SERVER_DIR)/server.port
  # You can use a different JVM to run the background javac server.
  ifeq ($$($1_SERVER_JVM),)
    # It defaults to the same JVM that is used to start the javac command.
    $1_SERVER_JVM:=$$($1_JVM)
  endif
endef

define add_file_to_copy
  # param 1 = BUILD_MYPACKAGE
  # parma 2 = The source file to copy.
  $2_TARGET:=$2
  # Remove the source prefix.
  $$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$2_TARGET)))
  # To allow for automatic overrides, do not create a rule for a target file that
  # already has one
  ifneq ($$($1_COPY_$$($2_TARGET)), 1)
    $1_COPY_$$($2_TARGET) := 1
    # Now we can setup the dependency that will trigger the copying.
    $$($1_BIN)$$($1_MODULE_SUBDIR)$$($2_TARGET) : $2
	$$(call LogInfo, Copying $$(patsubst $(OUTPUTDIR)/%,%, $$@))
	$$(install-file)
	$(CHMOD) -f ug+w $$@

    # And do not forget this target
    $1_ALL_COPY_TARGETS += $$($1_BIN)$$($1_MODULE_SUBDIR)$$($2_TARGET)
  endif
endef

# This macro is used only for properties files that are to be
# copied over to the classes directory in cleaned form:
# Previously this was inconsistently done in different repositories.
# This is the new clean standard. Though it is to be superseded by
# a standard annotation processor from with sjavac.
#
# An empty echo ensures that the input to sed always ends with a newline.
# Certain implementations (e.g. Solaris) will skip the last line without
# it.
#
# The sed expression does this:
# 1. Add a backslash before any :, = or ! that do not have a backslash already.
# 2. Apply the file unicode2x.sed which does a whole bunch of \u00XX to \xXX
#    conversions.
# 3. Delete all lines starting with #.
# 4. Delete empty lines.
# 5. Append lines ending with \ with the next line.
# 6. Remove leading and trailing white space. Note that tabs must be explicit
#    as sed on macosx does not understand '\t'.
# 7. Replace the first \= with just =.
# 8. Finally it's all sorted to create a stable output.
#
# It is assumed that = is the character used for separating names and values.
define add_file_to_clean
  # param 1 = BUILD_MYPACKAGE
  # parma 2 = The source file to copy and clean.
  $2_TARGET:=$2
  # Remove the source prefix.
  $$(foreach i,$$($1_SRC),$$(eval $$(call remove_string,$$i,$2_TARGET)))
  # Now we can setup the depency that will trigger the copying.
  # To allow for automatic overrides, do not create a rule for a target file that
  # already has one
  ifneq ($$($1_CLEAN_$$($2_TARGET)), 1)
    $1_CLEAN_$$($2_TARGET) := 1
    $$($1_BIN)$$($1_MODULE_SUBDIR)$$($2_TARGET) : $2
	$$(call LogInfo, Cleaning $$(patsubst $(OUTPUTDIR)/%,%, $$@))
	$$(call MakeTargetDir)
	export LC_ALL=C ; ( $(CAT) $$< && $(ECHO) "" ) \
	    | $(SED) -e 's/\([^\\]\):/\1\\:/g' -e 's/\([^\\]\)=/\1\\=/g' \
	        -e 's/\([^\\]\)!/\1\\!/g' -e 's/^[ 	]*#.*/#/g' \
	    | $(SED) -f "$(TOPDIR)/make/common/support/unicode2x.sed" \
	    | $(SED) -e '/^#/d' -e '/^$$$$/d' \
	        -e :a -e '/\\$$$$/N; s/\\\n//; ta' \
	        -e 's/^[ 	]*//;s/[ 	]*$$$$//' \
	        -e 's/\\=/=/' \
	    | $(SORT) > $$@
	$(CHMOD) -f ug+w $$@

    # And do not forget this target
    $1_ALL_COPY_CLEAN_TARGETS += $$($1_BIN)$$($1_MODULE_SUBDIR)$$($2_TARGET)
  endif
endef

define remove_string
  $2 := $$(subst $1,,$$($2))
endef

# Setup make rules for compiling Java source code to class files and/or a
# resulting jar file.
#
# Parameter 1 is the name of the rule. This name is used as variable prefix,
# and the targets generated are listed in a variable by that name.
#
# The target for public API digest is returned in $1_API_TARGET.
#
# Remaining parameters are named arguments. These include:
#   SETUP:=must point to a previously setup java compiler, for example: SETUP:=BOOTJAVAC
#   JVM:=path to ..bin/java
#   ADD_JAVAC_FLAGS:=javac flags to append to the default ones.
#   SRC:=one or more directories to search for sources. The order of the source roots
#        is significant. The first found file of a certain name has priority.
#   BIN:=store classes here
#   MODULE:=Name of module being compiled. If set, classes are put in BIN/MODULE.
#   CLASSPATH:=a list of additional entries to set as classpath to javac
#   INCLUDES:=myapp.foo means will only compile java files in myapp.foo or any of its sub-packages.
#   EXCLUDES:=myapp.foo means will do not compile java files in myapp.foo or any of its sub-packages.
#   COPY:=.prp means copy all prp files to the corresponding package in BIN.
#   COPY_FILES:=myapp/foo/setting.txt means copy this file over to the package myapp/foo
#   CLEAN:=.properties means copy and clean all properties file to the corresponding package in BIN.
#   CLEAN_FILES:=myapp/foo/setting.txt means clean this file over to the package myapp/foo
#   SRCZIP:=Create a src.zip based on the found sources and copied files.
#   INCLUDE_FILES:="com/sun/SolarisFoobar.java" means only compile this file!
#   EXCLUDE_FILES:="com/sun/SolarisFoobar.java" means do not compile this particular file!
#       "SolarisFoobar.java" means do not compile SolarisFoobar, wherever it is found.
#   EXTRA_FILES:=List of extra source files to include in compilation. Can be used to
#       specify files that need to be generated by other rules first.
#   HEADERS:=path to directory where all generated c-headers are written.
#   DEPENDS:=Extra dependecy
#   DISABLE_SJAVAC:=Explicitly disable the use of sjavac for this compilation unit.
#   KEEP_DUPS:=Do not remove duplicate file names from different source roots.
#   FAIL_NO_SRC:=Set to false to not fail the build if no source files are found,
#        default is true.
#   DEBUG_SYMBOLS:=Set to false to disable generation of debug symbols.
#   CREATE_API_DIGEST:=Set to true to use a javac plugin to generate a public API
#        hash which can be used for down stream dependencies to only rebuild
#        when the API changes. Implicitly used in sjavac.
#   KEEP_ALL_TRANSLATIONS:=Set to true to skip translation filtering
SetupJavaCompilation = $(NamedParamsMacroTemplate)
define SetupJavaCompilationBody

  # Verify arguments
  ifeq ($$($1_BIN),)
    $$(error Must specify BIN (in $1))
  endif

  # Extract the info from the java compiler setup.
  $1_JVM := $$($$($1_SETUP)_JVM)
  $1_JAVAC := $$($$($1_SETUP)_JAVAC)
  $1_FLAGS :=
  ifneq ($$($1_DEBUG_SYMBOLS), false)
    $1_FLAGS := -g
  endif
  $1_FLAGS += $$($$($1_SETUP)_FLAGS) $$($1_ADD_JAVAC_FLAGS) $(JAVAC_FLAGS)
  ifneq ($$($1_CLASSPATH), )
    $1_FLAGS += -cp $$(call PathList, $$($1_CLASSPATH))
  endif
  ifeq ($$($1_JAVAC),)
    $$(error The Java compilation $1 refers to a non-existant java compiler setup $$($1_SETUP))
  endif
  $1_SJAVAC_PORTFILE := $$($$($1_SETUP)_SJAVAC_PORTFILE)
  $1_SERVER_JVM := $$($$($1_SETUP)_SERVER_JVM)
  $1_DISABLE_SJAVAC := $$($$($1_SETUP)_DISABLE_SJAVAC)

  ifneq ($$($1_MODULE), )
    $1_MODULE_SUBDIR := /$$($1_MODULE)
  endif

  # Make sure the dirs exist, or that one of the EXTRA_FILES, that may not
  # exist yet, is in it.
  $$(foreach d, $$($1_SRC), \
    $$(if $$(wildcard $$d), , \
      $$(if $$(filter $$d%, $$($1_EXTRA_FILES)), , \
        $$(error SRC specified to SetupJavaCompilation $1 contains missing directory >$$d<) \
      ) \
    ) \
  )
  $$(call MakeDir,$$($1_BIN))
  # Add all source roots to the find cache since we are likely going to run find
  # on these more than once. The cache will only be updated if necessary.
  $$(eval $$(call FillCacheFind, $$($1_SRC)))
  # Find all files in the source trees. Preserve order of source roots so that
  # the first version in case of multiple instances of the same file is selected.
  # CacheFind does not preserve order so need to call it for each root.
  $1_ALL_SRCS += $$($1_EXTRA_FILES) $$(foreach s, $$($1_SRC), $$(call CacheFind, $$s))
  # Extract the java files.
  $1_SRCS := $$(filter %.java, $$($1_ALL_SRCS))

  # Translate include/exclude into patterns
  ifneq ($$($1_EXCLUDE_FILES), )
    $1_EXCLUDE_PATTERN := $$(addprefix %, $$($1_EXCLUDE_FILES))
  endif
  ifneq ($$($1_INCLUDE_FILES), )
    $1_INCLUDE_PATTERN := $$(foreach i, $$($1_SRC), $$(addprefix $$i/, $$($1_INCLUDE_FILES)))
  endif
  ifneq ($$($1_EXCLUDES), )
    $1_EXCLUDE_PATTERN += $$(foreach i, $$($1_SRC), $$(addprefix $$i/, $$(addsuffix /%, $$($1_EXCLUDES))))
  endif
  ifneq ($$($1_INCLUDES), )
    $1_INCLUDE_PATTERN += $$(foreach i, $$($1_SRC), $$(addprefix $$i/, $$(addsuffix /%, $$($1_INCLUDES))))
  endif

  # Apply include/exclude patterns to java sources
  ifneq ($$($1_EXCLUDE_PATTERN), )
    $1_SRCS := $$(filter-out $$($1_EXCLUDE_PATTERN), $$($1_SRCS))
  endif
  ifneq ($$($1_INCLUDE_PATTERN), )
    $1_SRCS := $$(filter $$($1_INCLUDE_PATTERN) $$($1_EXTRA_FILES), $$($1_SRCS))
  endif

  ifneq ($$($1_KEEP_DUPS), true)
    # Remove duplicate source files by keeping the first found of each duplicate.
    # This allows for automatic overrides with custom or platform specific versions
    # source files.
    #
    # For the smart javac wrapper case, add each removed file to an extra exclude
    # file list to prevent sjavac from finding duplicate sources.
    $1_SRCS := $$(strip $$(foreach s, $$($1_SRCS), \
        $$(eval relative_src := $$(call remove-prefixes, $$($1_SRC), $$(s))) \
        $$(if $$($1_$$(relative_src)), \
          $$(eval $1_SJAVAC_EXCLUDE_FILES += $$(s)), \
          $$(eval $1_$$(relative_src) := 1) $$(s))))
  endif

  # Filter out any excluded translations
  ifneq ($$($1_KEEP_ALL_TRANSLATIONS), true)
    $1_SRCS := $$(call FilterExcludedTranslations, $$($1_SRCS), .java)
  endif

  ifeq ($$(strip $$($1_SRCS)), )
    ifneq ($$($1_FAIL_NO_SRC), false)
      $$(error No source files found for $1)
    endif
  else

    $1_SAFE_NAME := $$(strip $$(subst /,_, $1))

    # All files below META-INF are always copied.
    $1_ALL_COPIES := $$(filter $$(addsuffix /META-INF%,$$($1_SRC)),$$($1_ALL_SRCS))
    # Find all files to be copied from source to bin.
    ifneq (,$$($1_COPY)$$($1_COPY_FILES))
      # Search for all files to be copied.
      $1_ALL_COPIES += $$(filter $$(addprefix %,$$($1_COPY)),$$($1_ALL_SRCS))
      # Copy these explicitly
      $1_ALL_COPIES += $$($1_COPY_FILES)
    endif
    # Copy must also respect filters.
    ifneq (,$$($1_INCLUDE_PATTERN))
      $1_ALL_COPIES := $$(filter $$($1_INCLUDE_PATTERN),$$($1_ALL_COPIES))
    endif
    ifneq (,$$($1_EXCLUDE_PATTERN))
      $1_ALL_COPIES := $$(filter-out $$($1_EXCLUDE_PATTERN),$$($1_ALL_COPIES))
    endif
    # Filter out any excluded translations
    ifneq ($$($1_KEEP_ALL_TRANSLATIONS), true)
      $1_ALL_COPIES := $$(call FilterExcludedTranslations, $$($1_ALL_COPIES), .properties)
    endif
    ifneq (,$$($1_ALL_COPIES))
      # Yep, there are files to be copied!
      $1_ALL_COPY_TARGETS:=
          $$(foreach i,$$($1_ALL_COPIES),$$(eval $$(call add_file_to_copy,$1,$$i)))
      # Now we can depend on $$($1_ALL_COPY_TARGETS) to copy all files!
    endif

    # Find all property files to be copied and cleaned from source to bin.
    ifneq (,$$($1_CLEAN)$$($1_CLEAN_FILES))
      # Search for all files to be copied.
      $1_ALL_CLEANS := $$(filter $$(addprefix %,$$($1_CLEAN)),$$($1_ALL_SRCS))
      # Clean these explicitly
      $1_ALL_CLEANS += $$($1_CLEAN_FILES)
      # Copy and clean must also respect filters.
      ifneq (,$$($1_INCLUDE_PATTERN))
        $1_ALL_CLEANS := $$(filter $$($1_INCLUDE_PATTERN),$$($1_ALL_CLEANS))
      endif
      ifneq (,$$($1_EXCLUDE_PATTERN))
        $1_ALL_CLEANS := $$(filter-out $$($1_EXCLUDE_PATTERN),$$($1_ALL_CLEANS))
      endif
      # Filter out any excluded translations
      ifneq ($$($1_KEEP_ALL_TRANSLATIONS), true)
        $1_ALL_CLEANS := $$(call FilterExcludedTranslations, $$($1_ALL_CLEANS), .properties)
      endif
      ifneq (,$$($1_ALL_CLEANS))
        # Yep, there are files to be copied and cleaned!
        $1_ALL_COPY_CLEAN_TARGETS:=
            $$(foreach i,$$($1_ALL_CLEANS),$$(eval $$(call add_file_to_clean,$1,$$i)))
        # Now we can depend on $$($1_ALL_COPY_CLEAN_TARGETS) to copy all files!
      endif
    endif

    # Create a sed expression to remove the source roots and to replace / with .
    # and remove .java at the end.
    $1_REWRITE_INTO_CLASSES:=$$(foreach i,$$($1_SRC),-e 's|$$i/||g') -e 's|/|.|g' -e 's|.java$$$$||g'

    # Create SJAVAC variable from JAVAC variable. Expects $1_JAVAC to be
    # "bootclasspathprepend -cp .../javac.jar com.sun.tools.javac.Main"
    # and javac is simply replaced with sjavac.
    $1_SJAVAC:=$$(subst com.sun.tools.javac.Main,com.sun.tools.sjavac.Main,$$($1_JAVAC))

    # Set the $1_REMOTE to spawn a background javac server.
    $1_REMOTE:=--server:portfile=$$($1_SJAVAC_PORTFILE),id=$1,sjavac=$$(subst \
        $$(SPACE),%20,$$(subst $$(COMMA),%2C,$$(strip $$($1_SERVER_JVM) $$($1_SJAVAC))))

    $1_COMPILE_TARGET := $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$1_batch
    $1_API_TARGET := $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$1_pubapi

    ifeq ($$($1_DISABLE_SJAVAC)x$$(ENABLE_SJAVAC),xyes)
      # Using sjavac to compile.

      # Create the sjavac wrapper command line. Sjavac doesn't handle patterns that
      # match the absolute path, only the part inside each src dir. Instead -i and
      # -x flags apply only to the next -src arg on the command line.
      $1_EXCLUDE_FILES_ABS := $$(filter /%, $$($1_EXCLUDE_FILES)) $$($1_SJAVAC_EXCLUDE_FILES)
      $1_EXCLUDE_FILES_REL := $$(filter-out /%, $$($1_EXCLUDE_FILES))
      $1_SJAVAC_ARGS_STRING := $$(foreach s, $$(patsubst %/, %, $$($1_SRC)), \
          $$(addprefix -x ,$$(addsuffix /**,$$($1_EXCLUDES))) \
          $$(addprefix -i ,$$(addsuffix /**,$$($1_INCLUDES))) \
          $$(addprefix -x **,$$(strip $$($1_EXCLUDE_FILES_REL))) \
          $$(addprefix -i **,$$(strip $$($1_INCLUDE_FILES))) \
          $$(addprefix -x , $$(strip $$(patsubst $$(s)/%, %, $$(filter $$(s)/%, $$($1_EXCLUDE_FILES_ABS))))) \
          -src $$(s))

      ifneq ($$(word 20, $$($1_SJAVAC_ARGS_STRING)), )
        $1_SJAVAC_ARGS_FILE := $$($1_BIN)/_the.$1_args
        $1_SJAVAC_ARGS := @$$($1_SJAVAC_ARGS_FILE)
      else
        $1_SJAVAC_ARGS := $$($1_SJAVAC_ARGS_STRING)
      endif


      ifneq (,$$($1_HEADERS))
        $1_HEADERS_ARG := -h $$($1_HEADERS)
      endif

      $1_VARDEPS := $$($1_JVM) $$($1_SJAVAC) $$($1_SJAVAC_ARGS_STRING) $$($1_FLAGS) \
          $$($1_HEADERS_ARG) $$($1_BIN) $$($1_EXCLUDES) $$($1_INCLUDES) \
          $$($1_EXCLUDE_FILES) $$($1_INCLUDE_FILES)
      $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
          $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$1.vardeps)

      $$($1_COMPILE_TARGET): $$($1_SRCS) $$($1_DEPENDS) $$($1_VARDEPS_FILE)
		$$(call MakeDir, $$(@D) $$(dir $$($1_SJAVAC_PORTFILE)))
		$$(eval $$(call ListPathsSafely,$1_SRCS, $$@.tmp))
                ifneq ($$($1_SJAVAC_ARGS_FILE), )
		  $$(eval $$(call ListPathsSafely,$1_SJAVAC_ARGS_STRING, $$($1_SJAVAC_ARGS_FILE)))
                endif
		$$(call LogWarn, Compiling $1)
		$$(call ExecuteWithLog, $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$$($1_SAFE_NAME)_batch, \
		    $$($1_JVM) $$($1_SJAVAC) \
		        $$($1_REMOTE) \
		        -j 1 \
		        --permit-unidentified-artifacts \
		        --permit-sources-without-package \
		        --compare-found-sources $$@.tmp \
		        --log=$(LOG_LEVEL) \
		        --state-dir=$$($1_BIN)$$($1_MODULE_SUBDIR) \
		        $$($1_SJAVAC_ARGS) \
		        $$($1_FLAGS) \
		        $$($1_HEADERS_ARG) \
		        -d $$($1_BIN)) && \
		$(MV) $$@.tmp $$@
                # Create a pubapi file that only changes when the pubapi changes. Dependent
                # compilations can use this file to only get recompiled when pubapi has changed.
                # Grep returns 1 if no matching lines are found. Do not fail for this.
		$(GREP) -e "^I" $$($1_BIN)$$($1_MODULE_SUBDIR)/javac_state \
		    > $$($1_API_TARGET).tmp || test "$$$$?" = "1"
		if [ ! -f $$($1_API_TARGET) ] \
		    || [ "`$(DIFF) $$($1_API_TARGET) $$($1_API_TARGET).tmp`" != "" ]; then \
		  $(MV) $$($1_API_TARGET).tmp $$($1_API_TARGET); \
		fi

    else
      # Using plain javac to batch compile everything.

      # When building in batch, put headers in a temp dir to filter out those that actually
      # changed before copying them to the real header dir.
      ifneq (,$$($1_HEADERS))
        $1_HEADERS_ARG := -h $$($1_HEADERS).$1.tmp

        $$($1_HEADERS)/_the.$1_headers: $$($1_COMPILE_TARGET)
		$$(call MakeTargetDir)
		if [ -d "$$($1_HEADERS).$1.tmp" ]; then \
		  for f in `$(CD) $$($1_HEADERS).$1.tmp && $(FIND) . -type f`; do \
		    if [ ! -f "$$($1_HEADERS)/$$$$f" ] \
		        || [ "`$(DIFF) $$($1_HEADERS)/$$$$f $$($1_HEADERS).$1.tmp/$$$$f`" != "" ]; then \
		      $(MKDIR) -p `$(DIRNAME) $$($1_HEADERS)/$$$$f`; \
		      $(CP) -f $$($1_HEADERS).$1.tmp/$$$$f $$($1_HEADERS)/$$$$f; \
		    fi; \
		  done; \
		fi
		$(RM) -r $$($1_HEADERS).$1.tmp
		$(TOUCH) $$@

        $1_HEADER_TARGETS := $$($1_HEADERS)/_the.$1_headers
      endif

      $1_VARDEPS := $$($1_JVM) $$($1_JAVAC) $$($1_FLAGS) $$($1_BIN) \
          $$($1_HEADERS_ARG) $$($1_EXCLUDES) $$($1_INCLUDES) \
          $$($1_EXCLUDE_FILES) $$($1_INCLUDE_FILES)
      $1_VARDEPS_FILE := $$(call DependOnVariable, $1_VARDEPS, \
          $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$1.vardeps)

      ifeq ($$($1_DISABLE_SJAVAC)x$(ENABLE_JAVAC_SERVER), xyes)
        $1_JAVAC_CMD := $$($1_SJAVAC) $$($1_REMOTE)
      else
        $1_JAVAC_CMD := $$($1_JAVAC)
      endif

      ifeq ($$($1_CREATE_API_DIGEST), true)
        $1_API_DIGEST_FLAGS := \
            -classpath $(BUILDTOOLS_OUTPUTDIR)/depend \
            -Xplugin:"depend $$($1_API_TARGET)" \
            #

        $1_EXTRA_DEPS := $(BUILDTOOLS_OUTPUTDIR)/depend/_the.COMPILE_DEPEND_batch
      endif

      # When not using sjavac, pass along all sources to javac using an @file.
      $$($1_COMPILE_TARGET): $$($1_SRCS) $$($1_DEPENDS) $$($1_VARDEPS_FILE) \
          $$($1_EXTRA_DEPS)
		$$(call MakeDir, $$(@D))
		$$(eval $$(call ListPathsSafely,$1_SRCS, $$@.tmp))
		$$(call LogWarn, Compiling $$(words $$($1_SRCS)) files for $1)
		$$(call ExecuteWithLog, $$($1_BIN)$$($1_MODULE_SUBDIR)/_the.$$($1_SAFE_NAME)_batch, \
		    $$($1_JVM) $$($1_JAVAC_CMD) $$($1_FLAGS) \
		        -implicit:none \
		        $$($1_API_DIGEST_FLAGS) \
		        -d $$($1_BIN) $$($1_HEADERS_ARG) @$$@.tmp) && \
		$(MV) $$@.tmp $$@
    endif

    # Add all targets to main variable
    $1 := $$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS) $$($1_COMPILE_TARGET) \
        $$($1_HEADER_TARGETS)

    # Check if a jar file was specified, then setup the rules for the jar.
    ifneq (,$$($1_JAR))
      # If no suffixes was explicitly set for this jar file.
      # Use class and the cleaned/copied properties file suffixes as the default
      # for the types of files to be put into the jar.
      ifeq (,$$($1_SUFFIXES))
        $1_SUFFIXES:=.class $$($1_CLEAN) $$($1_COPY)
      endif

      $$(eval $$(call SetupJarArchive, ARCHIVE_$1, \
          DEPENDENCIES:=$$($1), \
          SRCS:=$$($1_BIN)$$($1_MODULE_SUBDIR), \
          SUFFIXES:=$$($1_SUFFIXES), \
          EXCLUDE:=$$($1_EXCLUDES), \
          INCLUDES:=$$($1_INCLUDES), \
          EXTRA_FILES:=$$($1_ALL_COPY_TARGETS) $$($1_ALL_COPY_CLEAN_TARGETS), \
          JAR:=$$($1_JAR), \
          JARMAIN:=$$($1_JARMAIN), \
          MANIFEST:=$$($1_MANIFEST), \
          EXTRA_MANIFEST_ATTR:=$$($1_EXTRA_MANIFEST_ATTR), \
          JARINDEX:=$$($1_JARINDEX), \
          HEADERS:=$$($1_HEADERS), \
          SETUP:=$$($1_SETUP), \
      ))

      # Add jar to target list
      $1 += $$($1_JAR)
    endif

    # Check if a srczip was specified, then setup the rules for the srczip.
    ifneq (,$$($1_SRCZIP))
      $$(eval $$(call SetupZipArchive, ZIP_ARCHIVE_$1, \
          SRC:=$$($1_SRC), \
          ZIP:=$$($1_SRCZIP), \
          INCLUDES:=$$($1_INCLUDES), \
          EXCLUDES:=$$($1_EXCLUDES), \
          EXCLUDE_FILES:=$$($1_EXCLUDE_FILES)))

      # Add zip to target list
      $1 += $$($1_SRCZIP)
    endif
  endif # Source files found
endef

# Use this macro to find the correct target to depend on when the original
# SetupJavaCompilation is declared in a different makefile, to avoid having
# to declare and evaluate it again.
# param 1 is for example BUILD_MYPACKAGE
# param 2 is the output directory (BIN)
SetupJavaCompilationCompileTarget = \
    $(strip $2)/_the.$(strip $1)_batch

SetupJavaCompilationApiTarget = \
    $(strip $2)/_the.$(strip $1)_pubapi

endif # _JAVA_COMPILATION_GMK